Dirt-removing means.



W. KANE.

DIRT REMOVlNG MEANS.

APPLICATION man MAY-26. I917.

' Patented Dec. 18, 1917.

is w

Willi am Kan/e.

UNITED srA'rEs PATENT OFFICE.

WILLIAM KANE, OF NORRISTOWN, PENNSYLVANIA.

DIRT-REMOVING MEANS.

Specification of Letters Patent. Patented Dec. 18, 1917.

Application-filed May 26, 1917. Serial No. 171,282.

To all whom it may concern:

Be it known that I, WILLIAM KANE, a citizen of the United States, residing at Norristown, in the county of Montgomery and State of Pennsylvania, have invented certain new and useful Improvements in Dirt-Removing Means, of which the following is a specification.

My invention consists of improved dirt removing means, one of its objects being to prevent the accumulation of dirt in the combustion chambers of furnaces.

Another object is to so construct my invention that it will efficiently cool the dirt before and during its discharge.

A further object is to so make my invention that it can be easily controlled and will not interfere with the operation of theboiler.

A still further object is to make my invention of comparatively simple construction and so that it can be applied to furnaces of various types.

These objects, and other advantageous ends which will be described hereinafter, I attain in the following manner, reference being bad to the accompanying drawings in which Figure 1 is a longitudinal section of a boiler and furnace of a well known type and having my invention illustrated in connection therewith.

Fig. 2 is a transverse section on the line 2-2 of Fig. 1.

Fig. 3 is a fragmentary sectional plan view on the line 33 of Fig. 1.

Referring to the drawings, 1 represents a boiler mounted over a furnace including afire box 2 and combustion chamber 3, a wall 4 extending transversely of the boiler casing 5. The products of combustion pass from the fire box 2 and between the top of the wall 4 and battle 6 located on the bottom of the boiler 1. I form the combustion chamber 3 with an inclined bottom 7 and inclined sides 8 and 9, the latter being clearly illustrated in Fig. 2. The sides 8 and 9, and the bottom 7, slant toward a common opening 10 at the bottom of the combustion chamber.

A spout 11, preferably made of metal, has one end registering with the opening 10 and is tapered toward its opposite end as illusstrated at 12. The spout 11 is curved throughout its length so that while the wide end is substantially horizontal, the narrow end is arranged vertically and opens into a pit 13 under the furnace structure and into this pit is discharged the dirt from the combustion chamber 3 aswill be hereinafter more fully described.

A main supply pipe 14: leads upwardly from a position outside of the furnace and connects with another pipe 15 which, throughout its length is curved around the spout 11 as clearly shown in Fig. 5, The free end 16 of thispipe 15 is preferably closed by a cap 17 and leading from the pipe 15 at different points throughout its length are a plurality of branch pipes 18.

Each of the branch pipes 18 has a row of jet tubes 19 which extend through holes in the spout 11, the inner ends of these tubes 19 preferably made flush with the inner surface of the spout 11 and certain of these tubes extend downwardly while others extend upwardly.

Referring to Fig. 1 it will be noted, for example, that the tubes 20 extend downwardly and that the tubes 21- extend upwardly, the intermediate tubes 22 extending substantially horizontal.

Steam, air, or other fluid under pressure is supplied to the pipe 14: and is distributed to the respective jet. tubes through the medium of the curved pipe 15 and the branch pipes 18. The hot dirt dropping into the combustion chamber 3, will be deflected by the inclined bottom 7 and sides 8 and 9 into the spout 11 and the fluid as it is ejected from the tubes 19, will cool and force the dirt toward the end 12 of the spout 11. t The end 12 of the spout is normally closed by a door 23, this door resting upon a ledge 24.

A rail 25' is provided to form a guide-wa for the upper edge of the door 23 to permit the latter to be slid in front of and away from the end 12 of the spout 11. The rail 25 has a depending portion 26 as illustrated in Fig. 2, and this portion forms an abutment to stop the door when it has-been moved in front of the end 12 of the spout 11. v A hand lever 27 is pivotallymounted outside of the furnace casing and a link rod 28 pivotally connects the lower end of the lever 27 with the door 23, so that by the movement of the lever 27, the door can be manually moved into an open or closed po- The door 23 can be opened from time to time and the fluid under pressure can be.

the operation of a valve 29 which is in convenient reach of a person while standing near the lever 27, so that with one hand the lever 27 can be operated to open the door, and with the other hand, the valve 29 can be opened tocause the passage of fluid through the pipe 14 to discharge the dirt from the spout 11 into the pit 13.

The jet tubes 21 which lead upwardly cause the cooling of the dirt while it is fallin into the spout 11, the other of the jet tu es serving to further cool the dirt and to force it out of the spout 11 into the pit 13.

By the arrangement illustrated, I provide means which will efficiently perform the function above described and the combustion chamber can be kept free of dirt which would otherwise prevent the proper operation of the furnace. The dirt which is discharged into the pit 13 can be easily removed and the accumulation of'the dirt within the pit does not in any way interfere with the proper operation of the furnace.

While I have described my invention as taking a particular form, it will be understood that the various parts of my invention may be changed without departing from the s irit thereof, and hence Ido not limit myse f to the precise construction set forth, but consider that I am at liberty to make such changes and alterations as fairly come within the scope of the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. The combination with a furnace having a combustion chamber, of a downwardly extending spout having one end registering with the bottom of the combustion chamber and extending downwardly, said spout being curved within its length and tapering toward its lower end, a pit formed adjacent the lower end of the spout and with which the latter communicates, means for applying fluid under pressure into said spout, means for directing the fluid downwardly within said spout, and a door for closlng said spout to the pit, substantially as described.

2. The combination with a furnace having a combustion chamber, of a downwardly extending spout having one end registering with the bottom of the combustion chamber and curved throughout its length, a pit formed adjacent the lower end of the spout and with which the latter communicates,

means for supplying fluid under pressure into said spout, means for directing the fluid upwardly and downwardly within said spout, and a door for closing said spout to the pit and to the combustion chamber, substantially as described.

3. The combination with a furnace having a combustion chamber, of a spout having an end opening into the bottom of the combustion chamber and extending downwardly therefrom, a pit formed at the opposite end of said spout, a door for closing the said spout to the pit and to the combustion chamber, a pipe surrounding said spout, a supply pipe communicating with said surrounding pipe, branch pipes leading from said surrounding pipe, and jettubes leading from said branch pipes and communicating with the interior of the spout, substantially as described.

4. The combination with a furnace having a combustion chamber, of a spout having an end opening into the bottom of the combustion chamber and extending downwardly therefrom, a pit formed at the opposite end of said spout, a dOOr for closing the said spout to the pit and to the combustion chamber, a pipe surrounding said spout, a supply pipe communicating with said surrounding pipe, branch pipes leading from said surrounding pipe, jet tubes leading from said branch pipes, certain of said jet tubes point- .ing downwardly toward the outlet end of the spout while others of said jet tubes point upwardly, substantially as described.

5. The combination with a furnace having a combustion chamber, of a spout having an end opening into the bottom of the combustion chamber and extending downwardly therefrom, a pit formed at the opposite end of said spout, a door slidably mounted adjacent the lower end of said spout and adapted to close the spout to the pit and to the combustion chamber, a lever outside of said furnace, and a'link connecting said lever with the door whereby the door is moved when the lever is actuated, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

WILLIAM KANE.

Witnesses:

TILLIE KANE, CHAS. E. Po'rr's. 

